Noise-tolerant Bessel-beam single-photon imaging in fog

Noise-tolerant Bessel-beam single-photon imaging in fog

Reliable laser imaging is crucial to the autonomous driving. In unfavorable weather condition, however, it always suffers from the acute background noise and signal attenuation due to the harmful strong scattering. We demonstrate a noise-tolerant LiDAR with the help of Bessel beam illumination and s...

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Veröffentlicht in:Optics express 2022-03, Vol.30 (7), p.12061-12068
Hauptverfasser: Shi, Haotian, Shen, Guangyue, Qi, Huiyu, Zhan, Qi, Pan, Haifeng, Li, Zhaohui, Wu, Guang
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container_end_page 12068
container_issue 7
container_start_page 12061
container_title Optics express
container_volume 30
creator Shi, Haotian
Shen, Guangyue
Qi, Huiyu
Zhan, Qi
Pan, Haifeng
Li, Zhaohui
Wu, Guang
description Reliable laser imaging is crucial to the autonomous driving. In unfavorable weather condition, however, it always suffers from the acute background noise and signal attenuation due to the harmful strong scattering. We demonstrate a noise-tolerant LiDAR with the help of Bessel beam illumination and single-photon detection. After a 31.5-m propagation in thick fog, the Bessel beam employed by our noise-tolerant LiDAR still owns a central spot with the diameter of 1.86 mm, which supports a receiving field of view as small as 60 µrad and a great suppression of the background noise. This noise-tolerant LiDAR simultaneously performs well both in depth and intensity imaging in unfavorable weather, which can be functioned as a reliable imaging sensor in automatic driving.
doi_str_mv 10.1364/OE.454669
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title Noise-tolerant Bessel-beam single-photon imaging in fog
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